1.
The time of closing the cycle, in modern circuit breakers is

2.
Thermal circuit breaker has

3.
A thermal protection switch can protect against

4.
The inductive interference between power and communication line can be minimized by

5.
When a transmission line is energized, the wave that propagates on it is

6.
Thermal overload relays are used to protect the motor against over current due to

7.
Discrimination between main and back up protection is provided by the use of relays which are

8.
Resistance grounding is used for voltage between

9.
Short-circuit currents are due to

10.
The relay with inverse time characteristic will operate within

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